Patent · US Active

Push-button switch operating portion with diverging and converging lens

US10253968B2 · kind B2 · utility

0Cited by

14References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Zhi-Zeng Cheng · Suzhou, CN
Jian Liu · Taiyuan, CN
Song Liu · Tongji, CN
Radek Melich · Moissy-Cramayel, FR
Hua Lang Wang · Suzhou, CN
Hong Yang · Beijing, CN
Shi Bo Yin · Suzhou, CN

Key dates

Filing date	Aug 30, 2013
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Feb 6, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2219/066
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An operating button includes a light source, a push rod with a diverging lens, and an operating head with a condensing lens. The optical center of the diverging lens, the optical center of the condensing lens and the light source are in the same line such that light rays generated by the light source pass through the diverging lens and the converging lens before exiting the operating head as parallel light.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.